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Shareholders' Equity (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 419 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Equity [Abstract]          
Cumulative-effect adjustment for the change in accounting principle to retained earnings $ 576   $ 576   $ 576
Shares repurchased 2,900 28,000 36,100 173,200 967,000
Aggregate purchase price $ 1 $ 10 $ 12 $ 75 $ 461